Tcl_InitSubsystems - initialize the Tcl library.

       The  Tcl_InitSubsystems procedure initializes the Tcl library. This procedure is typically invoked as the
       very first thing in the application's main program.

       The  result  of  Tcl_InitSubsystems  is  the   full   Tcl   version   with   build   information   (e.g.,
       9.0.0+abcdef...abcdef.gcc-1002).

       Tcl_InitSubsystems  is  very  similar  in  use  to Tcl_FindExecutable. It can be used when Tcl is used as
       utility library, no other encodings than utf-8, iso8859-1 or utf-16 are used, and no interest  exists  in
       the  value  of infonameofexecutable. The system encoding will not be extracted from the environment, but
       falls back to utf-8.

       binary, executable file

Tcl                                                    9.0                              Tcl_InitSubsystems(3tcl)

       Tcl_InitSubsystems - initialize the Tcl library.

#include<tcl.h>

       const char *
       Tcl_InitSubsystems()
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